Solid Tungsten Carbide Round Bar

Description Of Solid Tungsten Carbide Round Bar

Solid Tungsten Carbide Round Bar is a high-performance cylindrical product manufactured from tungsten carbide (WC) with a metallic cobalt binder through powder metallurgy and HIP (Hot Isostatic Pressing) sintering processes. These round bars are the primary substrate material for manufacturing solid carbide cutting tools, wear parts, punches, and precision components.

The manufacturing process begins with high-purity tungsten carbide powder (100% virgin raw material) mixed with cobalt binder, followed by ball milling, pressing into rod blanks, high-temperature vacuum sintering, and HIP densification to achieve uniform microstructure and near-theoretical density. The sintered rods then undergo precision grinding, lapping, and polishing to achieve tight dimensional tolerances and smooth surface finishes.

Solid tungsten carbide round bars inherit all the exceptional properties of tungsten carbide: extreme hardness (HRA 88–94), high density (14.0–15.1 g/cm³), excellent wear resistance (tool life can be extended by 10 to 50 times compared to high-speed steel), high compressive strength, good transverse rupture strength (up to 4,000 N/mm²), and excellent thermal and chemical stability. These properties make them the material of choice for the most demanding cutting and wear applications.

Solid tungsten carbide round bars are available in a wide range of grades, diameters, and surface finishes to meet diverse application requirements across metalworking, woodworking, electronics, aerospace, and general manufacturing industries.

Features Of Solid Tungsten Carbide Round Bar

Extreme Hardness: Solid tungsten carbide round bars offer hardness of HRA 88 to 94 — significantly harder than high-speed steel — ensuring superior wear resistance and extended tool life.

High Transverse Rupture Strength (TRS): TRS values range from 2,000 to 4,000 N/mm² depending on grade, providing the toughness needed to withstand high impact and load conditions.

High Elastic Modulus: With an elastic modulus of 550–700 GPa — approximately three times that of steel — carbide rods provide exceptional rigidity and resist deflection under load.

Superior Wear Resistance: The wear resistance of tungsten carbide is 10 to 50 times that of high-speed steel, significantly extending tool and component service life.

High Density: With density ranging from 14.0 to 15.1 g/cm³, carbide rods provide excellent mass and stability.

Excellent Thermal and Chemical Stability: Tungsten carbide rods offer strong chemical stability, corrosion resistance, low thermal expansion coefficient, and low friction coefficient.

100% Virgin Raw Materials: Manufactured from 100% virgin tungsten carbide powder, ensuring consistent quality and superior performance.

HIP Sintering Process: Advanced HIP (Hot Isostatic Pressing) sintering produces rods with uniform microstructure, minimal porosity, and superior mechanical properties.

Coolant Hole Options: Available with one or two straight cooling holes, or spiral cooling holes for internal cooling applications.

Customizable Dimensions: Available in diameters from 1.0mm to 42.0mm, with standard lengths of 310–330mm and custom lengths upon request.

Multiple Surface Finishes: Available as unground blanks, precision ground rods, and polished rods.

Specifications Of Solid Tungsten Carbide Round Bar

Dimensional Specifications: